Nioxin System 1 Duo 1 LitreThe Nioxin Scalp Revitaliser 1 for Fine Natural Hair is a lightweight conditioner that has been specially formulated to improve hair’s resilience and control moisture balance. Nioxin have developed systems that are tailored for individuals needs. This Nioxin Scalp Revitaliser 1 for Fine Natural Hair is a high performance conditioner that revives your scalp and strengthens hair.